US Patent: 1,414,520
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| Lathe Turning Tool
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Patentee:
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| Trevillie O. Martin (exact or similar names) - Jackson, Madison County, TN |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jun. 05, 1920 |
| Granted: |
May 02, 1922 |
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Joel Havens
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Description: |
| Claim:
The invention has, as one of its features, the conservation of expensive high speed tool steels such as are used in making turning tools, twist drills and the like, by converting discarded twist drills into lathe tools. |
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